MATERIAL:PLASTIC or Metal 5",7" Round and Rectangle Universal Fit are available. BULB:H3 12V 55W PACKING:12PCS/CTN MEAS:81X23X30CM 5" Round USD1.85/PC 5" Rectangle USD2.05/PC 7"Round USD2.35/PC 7"Rectangle USD2.55/PC metal housing are selling at lower price